Rotary blower



R. E. HARRIS. ROTARY BLOWER.

(No Model.)

Patented A r zz, 1884.

INVENTOR WITNESSES:

PETERS, Phnlo-Lilhagnphor. Wlshingwm D. c.

ilNrTnn STATES PATENT Orricn.

RALPH E. HARRIS, OF MAGOMB, ILLINOIS.

ROTARY BLOWER.

SPECIFICATION forming part of Letters Patent No. 297,392. dated April 22, 1884-.

(No model.)

To all whom it may concern Be it known that I, RALPH E. HARRIs, of Macomb, in the county of McDonough and State of Illinois, have invented new and useful Improvements in Rotary Blowers, of which the following is a full, clear, and exact description, which will enable others skilled-in the art to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in which Figure 1 is a sectional elevation. Fig. 2 is a longitudinal section, and Figs. 3 and 4 aredetached parts.

Similar letters indicate like parts in each figure.

This invention has for its object to construct a rotary blower that will be very efficient in operation and economize in power; and its novelty consists in a cylinder having hollow journals and slots in its outer circumference, a crank-shaft held stationary, and wings having yokes and guides attached, which will subsequently be fully described, and pointed out in the claims.

Inthe drawings, A represents a cylinder having hollow journals 0 c and three slots, e ee, in its periphery, and in its center a shaft, J, which has short crooks near each end, which form the center part into a crank, which places the center part of the shaft out of line with the center of the cylinder and in line with the center of the casing B. The shaft J passes through the hollow journals 0 c at each end, and is held stationary and kept from turning by the brackets n a. (See Fig. 2.)

- The wings s s 8 (see Fig. 3) have attached to them yokes a a and guides These wings are placed inside the cylinder A, and fit into the slots e c 0, (shown in the end view of the cylinder, Fig. 4.) The crank-shaft J passes through the yokes a (t and between the guides (See Fig. 2.) The cranks ofthe shaft are placed between the yokes a a and the guides it 'i'i, the guides being placed on that part of the shaft that is in line with the center of the cylinder, and the yokes c a on that part of the shaft set out of line by the crank and in line with the center of the casing B, so that when the cylinder is revolved the guides keep the inner edges of the Wings 8 s s in line with the center of the cylinder, while the crank part of the shaft, by means of the yokes a a (1, causes the wings s s s to play in and out as the cylinder-revolves, the outer edges of the wings following the inner circumference of the casing B. The cylinder A is set to one side of the center of the inner circumference of the casing B the exact distance the crank part of the shaft J is set out of line in the cylinder.

Operation-Motion is applied to the cylinder by means of the pulley m, which is secured to the hollow journal 0. The shaft J, being held stationary, causes the crank part of the shaft to remain in one position, and as the cylinder revolves around it the wings s s s, by means of the yokes a a and guidesit' it, move in and out through the slots 6 e e, the outer edges of the wings extending beyond the outer circumference of the cylinder following the inner circumference of thecasing B, forcing the air from the time it enters at the arrow f until it passes out at the tube d.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The cylinder A, having hollow journals 0 c and slots 6 e e in its outer circumference, and placed at one side of the inner circumference of the casing B, in combination with the shaft J and wings 838, having yokes a a a and guides i t 1' attached, substantially as shown and described, for the purpose set forth.

2. The wings s s 8, having yokes a a a and guides 71 attached, in combination with the crankshaft J, as shown and described.

R. E. HARRIS.

Witnesses:

T. J. PRICE, R. T. QUIN. 

